Investigation of the effect of prism therapy on attention dysfunction in right-parietal lobe damaged stroke patients with spatial neglect.

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A strong predictor of a bad outcome after stroke is spatial neglect. This condition is due to a deficit in attention. With attention shifted towards the undamaged side, the victim ignores their damaged side. A new therapy improves neglect, yet little is known about how brain circuits are altered with therapy. We will identify brain areas critical in restoring normal attention, and will investigate for the first time whether repeated therapy sessions improve treatment effectiveness.